California's 3rd Senate district

California's 3rd State Senate district
Current senator	Bill Dodd D–Napa
Population (2010)  • Voting age  • Citizen voting age	928,167 716,049 612,229
Demographics	51.52% White 8.01% Black 24.98% Latino 12.48% Asian 1.00% Native American 0.64% Hawaiian/Pacific Islander 0.32% other 1.04% remainder of multiracial
Registered voters	526,122
Registration	48.81% Democratic 22.34% Republican 23.76% No party preference

California's 3rd State Senate district is one of 40 California State Senate districts. It is currently represented by Democrat Bill Dodd of Napa.

The district stretches over the northern San Francisco Bay Area and the Sacramento–San Joaquin River Delta regions. It includes parts of the North Bay, Wine Country, and the Sacramento Valley.

Due to redistricting, the 3rd district has been moved around different parts of the state. The current iteration resulted from the 2011 redistricting by the California Citizens Redistricting Commission.